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Home >> Mazda >> 2025 >> CX-5 S Select >> Repair and Diagnosis >> External Pages >> Different car >> Section 237 (Connectivity Master Unit - Introduction) >> Entertainment System >> Operation >> Communication function >> SMS (Short Message Service)
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SMS (Short Message Service)

WARNING: This page is about a different car, the 2024 Mazda CX-90. However, it is still accessible from the selected car via links, so may be relevant.
  1. When the connectivity master unit (CMU) receives the operation signal/detects the switch operation, it sends a control signal to a mobile device such as a Bluetooth ®-enabled mobile phone or a Smartphone.
  2. When the mobile device such as a Smartphone or a Bluetooth ®-enabled device receives the control signal, the digital data is sent to the connectivity master unit (CMU).
  3. The connectivity master unit (CMU) converts the video signal of the digital data to a GMSL signal and sends the GMSL signal to the center display.
  4. The center display indicates the SMS information based on the received GMSL signal.
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